For Screw Size For Screw Size |
|---|
Material Material | Show |
|---|
|
Material Material | Hide |
|---|
Thickness Thickness |
|---|
ID ID |
|---|
OD OD |
|---|
Maximum Temperature Maximum Temperature |
|---|
|
Overall Height Overall Height |
|---|
Minimum Temperature Minimum Temperature |
|---|
|
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
|---|
REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
|---|
|
Hardness Hardness |
|---|
|
RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
|---|
|
Shape Shape |
|---|
| Round | |
Specifications Met Specifications Met |
|---|
|
Finish Finish |
|---|
|
Tensile Strength Tensile Strength |
|---|
|
About Washers
More
Extreme-Temperature Ceramic Washers
Ceramic washers withstand temperatures up to 3000° F. They are good electrical insulators and resist moisture as well as hydrochloric and nitric acid gases. Suitable for use in ovens.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Max. Temperature, °F | Specifications Met | Color | Each | |
Ceramic | ||||||||
|---|---|---|---|---|---|---|---|---|
| No. 0 | 0.068" | 0.188" | 0.022"-0.028" | 3000° | __ | Off-White | 000000000 | 00000 |
| No. 2 | 0.094" | 0.250" | 0.028"-0.036" | 3000° | __ | Off-White | 000000000 | 0000 |
| No. 4 | 0.125" | 0.375" | 0.036"-0.045" | 3000° | __ | Off-White | 000000000 | 0000 |
| No. 5 | 0.141" | 0.406" | 0.036"-0.045" | 3000° | __ | Off-White | 000000000 | 0000 |
| No. 6 | 0.156" | 0.438" | 0.036"-0.045" | 3000° | __ | Off-White | 000000000 | 0000 |
| No. 8 | 0.188" | 0.500" | 0.036"-0.045" | 3000° | __ | Off-White | 000000000 | 0000 |
| No. 10 | 0.203" | 0.562" | 0.036"-0.045" | 3000° | __ | Off-White | 000000000 | 0000 |
| No. 12 | 0.234" | 0.625" | 0.056"-0.071" | 3000° | __ | Off-White | 000000000 | 0000 |
| 1/4" | 0.281" | 0.734" | 0.056"-0.071" | 3000° | __ | Off-White | 000000000 | 0000 |
| 5/16" | 0.344" | 0.875" | 0.056"-0.071" | 3000° | __ | Off-White | 000000000 | 0000 |
| 3/8" | 0.406" | 1.000" | 0.056"-0.071" | 3000° | __ | Off-White | 000000000 | 0000 |
| 7/16" | 0.469" | 1.125" | 0.056"-0.071" | 3000° | __ | Off-White | 000000000 | 0000 |
| 1/2" | 0.531" | 1.250" | 0.090"-0.112" | 3000° | __ | Off-White | 000000000 | 0000 |
| 9/16" | 0.594" | 1.469" | 0.090"-0.112" | 3000° | __ | Off-White | 000000000 | 0000 |
| 5/8" | 0.656" | 1.750" | 0.090"-0.112" | 3000° | __ | Off-White | 000000000 | 0000 |
| 3/4" | 0.812" | 2.000" | 0.090"-0.112" | 3000° | __ | Off-White | 000000000 | 00000 |
| 7/8" | 0.938" | 2.250" | 0.146"-0.174" | 3000° | ASME B18.21.1 | Off-White | 000000000 | 00000 |
| 1" | 1.062" | 2.500" | 0.146"-0.174" | 3000° | ASME B18.21.1 | Off-White | 000000000 | 00000 |
Metric Extreme-Temperature Ceramic Washers
Ceramic washers withstand temperatures up to 3000° F. They are good electrical insulators and resist moisture as well as hydrochloric and nitric acid gases. Suitable for use in ovens.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID, mm | OD, mm | Thick., mm | Max. Temperature, °F | Specifications Met | Color | Each | |
Ceramic | ||||||||
|---|---|---|---|---|---|---|---|---|
| M2 | 2.6 | 6.0 | 0.6-0.9 | 3000° | ASME B18.22M | Off-White | 000000000 | 00000 |
| M3 | 3.6 | 10.0 | 0.8-1.2 | 3000° | ASME B18.22M | Off-White | 000000000 | 0000 |
| M4 | 4.8 | 12.0 | 1.0-1.4 | 3000° | ASME B18.22M | Off-White | 000000000 | 0000 |
| M5 | 5.6 | 15.0 | 1.2-1.8 | 3000° | __ | Off-White | 000000000 | 0000 |
| M6 | 6.8 | 18.8 | 1.2-1.8 | 3000° | __ | Off-White | 000000000 | 0000 |
| M8 | 9.0 | 25.4 | 1.6-2.3 | 3000° | ASME B18.22M | Off-White | 000000000 | 0000 |
| M10 | 11.0 | 28.0 | 2.0-2.8 | 3000° | ASME B18.22M | Off-White | 000000000 | 0000 |
| M12 | 13.4 | 34.0 | 2.5-3.5 | 3000° | ASME B18.22M | Off-White | 000000000 | 0000 |
| M14 | 15.4 | 39.0 | 2.5-3.5 | 3000° | ASME B18.22M | Off-White | 000000000 | 00000 |
| M16 | 17.4 | 44.0 | 3.0-4.0 | 3000° | ASME B18.22M | Off-White | 000000000 | 00000 |
| M20 | 22.0 | 50.0 | 3.5-4.6 | 3000° | ASME B18.22M | Off-White | 000000000 | 00000 |
Electrical-Insulating Sleeve Washers

Also known as shoulder or insulator washers, these nonmetal washers block electrical current and prevent galvanic corrosion from mating different types of metal.
Ceramic washers withstand high temperatures and resist moisture as well as hydrochloric and nitric acid gases.
For technical drawings and 3-D models, click on a part number.
Temperature Range, °F | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size | ID | OD | Sleeve OD | Thick. | Overall Ht. | Min. | Max. | Color | Pkg. Qty. | Pkg. | |
Ceramic | |||||||||||
| No. 6 | 0.150" | 0.500" | 0.281" | 0.125" | 0.187" | Not Rated | 1700° | Off-White | 5 | 000000000 | 000000 |
| No. 6 | 0.150" | 0.500" | 0.281" | 0.187" | 0.437" | Not Rated | 1700° | Off-White | 5 | 000000000 | 00000 |
| No. 8 | 0.175" | 0.625" | 0.406" | 0.125" | 0.187" | Not Rated | 1700° | Off-White | 5 | 000000000 | 00000 |
| No. 8 | 0.175" | 0.625" | 0.406" | 0.218" | 0.468" | Not Rated | 1700° | Off-White | 5 | 000000000 | 00000 |
| No. 10 | 0.200" | 0.750" | 0.468" | 0.156" | 0.218" | Not Rated | 1700° | Off-White | 5 | 000000000 | 00000 |
| No. 10 | 0.200" | 0.750" | 0.468" | 0.218" | 0.468" | Not Rated | 1700° | Off-White | 5 | 000000000 | 00000 |
| 1/4" | 0.265" | 0.875" | 0.593" | 0.188" | 0.250" | Not Rated | 1700° | Off-White | 5 | 000000000 | 00000 |
| 1/4" | 0.265" | 0.875" | 0.593" | 0.250" | 0.500" | Not Rated | 1700° | Off-White | 5 | 000000000 | 00000 |
| M2 | 2.100mm | 4.200mm | 3.000mm | 1.500mm | 4.000mm | Not Rated | 1700° | Off-White | 1 | 000000000 | 0000 |
| M3 | 3.100mm | 6.200mm | 4.000mm | 1.500mm | 3.000mm | Not Rated | 1700° | Off-White | 1 | 000000000 | 0000 |
| M3 | 3.100mm | 6.200mm | 4.000mm | 1.500mm | 5.000mm | Not Rated | 1700° | Off-White | 1 | 000000000 | 0000 |
| M3 | 3.100mm | 6.200mm | 4.000mm | 1.500mm | 9.000mm | Not Rated | 1700° | Off-White | 1 | 000000000 | 0000 |
| M4 | 4.100mm | 8.400mm | 6.000mm | 1.500mm | 4.500mm | Not Rated | 1700° | Off-White | 1 | 000000000 | 0000 |
| M4 | 4.100mm | 8.400mm | 6.000mm | 1.500mm | 6.500mm | Not Rated | 1700° | Off-White | 1 | 000000000 | 0000 |
| M5 | 5.100mm | 10.200mm | 7.000mm | 2.000mm | 5.000mm | Not Rated | 1700° | Off-White | 1 | 000000000 | 0000 |
| M5 | 5.100mm | 10.200mm | 7.000mm | 2.000mm | 7.000mm | Not Rated | 1700° | Off-White | 1 | 000000000 | 0000 |
| M6 | 6.100mm | 12.200mm | 8.000mm | 2.000mm | 6.000mm | Not Rated | 1700° | Off-White | 1 | 000000000 | 0000 |
| M6 | 6.100mm | 12.200mm | 8.000mm | 2.000mm | 12.000mm | Not Rated | 1700° | Off-White | 1 | 000000000 | 0000 |
| M8 | 8.100mm | 14.200mm | 10.000mm | 2.500mm | 6.500mm | Not Rated | 1700° | Off-White | 1 | 000000000 | 0000 |
| M8 | 8.100mm | 14.200mm | 10.000mm | 2.500mm | 10.500mm | Not Rated | 1700° | Off-White | 1 | 000000000 | 0000 |
Electrical-Insulating Cup Sleeve Washers

These washers have a flat bottom and high walls to protect metal screw heads from electrical current and prevent galvanic corrosion from mating different types of metal.
Ceramic washers withstand high temperatures and resist moisture as well as hydrochloric and nitric acid gases.
For technical drawings and 3-D models, click on a part number.
Temperature Range, °F | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size | ID | OD | Cup ID | Inside Dp. | Thick. | Overall Ht. | Min. | Max. | Hardness | Color | Pkg. Qty. | Pkg. | |
Ceramic | |||||||||||||
| No. 4 | 0.130" | 0.440" | 0.250" | 0.125" | 0.100" | 0.225" | Not Rated | 1700° | Rockwell C73 | Off-White | 1 | 000000000 | 00000 |
| No. 6 | 0.160" | 0.500" | 0.312" | 0.150" | 0.100" | 0.250" | Not Rated | 1700° | Rockwell C73 | Off-White | 1 | 000000000 | 0000 |
| No. 8 | 0.180" | 0.560" | 0.375" | 0.170" | 0.100" | 0.270" | Not Rated | 1700° | Rockwell C73 | Off-White | 1 | 000000000 | 0000 |
| No. 10 | 0.200" | 0.625" | 0.437" | 0.190" | 0.100" | 0.290" | Not Rated | 1700° | Rockwell C73 | Off-White | 1 | 000000000 | 0000 |
| 1/4" | 0.260" | 0.750" | 0.531" | 0.250" | 0.100" | 0.350" | Not Rated | 1700° | Rockwell C73 | Off-White | 1 | 000000000 | 0000 |
Electrical-Insulating Unthreaded Spacers
Protect components from electrical charges.
Ceramic spacers withstand high temperatures.
For technical drawings and 3-D models, click on a part number.
| Lg. | For Screw Size | ID | Dielectric Strength, V/mil | Temperature Range, °F | Color | Pkg. Qty. | Pkg. | |
Unglazed Grade L5 Ceramic | ||||||||
|---|---|---|---|---|---|---|---|---|
1/4" OD | ||||||||
| 3/16" | No. 3 | 0.115" | 275 | 50° to 1700° | Beige | 1 | 000000000 | 00000 |
| 3/16" | No. 4 | 0.140" | 275 | 50° to 1700° | Beige | 1 | 000000000 | 0000 |
| 1/4" | No. 3 | 0.115" | 275 | 50° to 1700° | Beige | 1 | 000000000 | 0000 |
| 1/4" | No. 4 | 0.140" | 275 | 50° to 1700° | Beige | 1 | 000000000 | 0000 |
| 3/8" | No. 3 | 0.115" | 275 | 50° to 1700° | Beige | 1 | 000000000 | 0000 |
| 3/8" | No. 4 | 0.140" | 275 | 50° to 1700° | Beige | 1 | 000000000 | 0000 |
| 1/2" | No. 4 | 0.140" | 275 | 50° to 1700° | Beige | 1 | 000000000 | 0000 |
| 5/8" | No. 4 | 0.140" | 275 | 50° to 1700° | Beige | 1 | 000000000 | 0000 |
| 3/4" | No. 4 | 0.140" | 275 | 50° to 1700° | Beige | 1 | 000000000 | 0000 |
3/8" OD | ||||||||
| 1/4" | No. 8 | 0.192" | 275 | 50° to 1700° | Beige | 1 | 000000000 | 0000 |
| 3/8" | No. 8 | 0.192" | 275 | 50° to 1700° | Beige | 1 | 000000000 | 0000 |
| 1/2" | No. 8 | 0.192" | 275 | 50° to 1700° | Beige | 1 | 000000000 | 0000 |
| 3/4" | No. 8 | 0.192" | 275 | 50° to 1700° | Beige | 1 | 000000000 | 0000 |
| 1" | No. 8 | 0.192" | 275 | 50° to 1700° | Beige | 1 | 000000000 | 0000 |
1/2" OD | ||||||||
| 3/8" | No. 10 | 0.250" | 275 | 50° to 1700° | Beige | 1 | 000000000 | 0000 |
| 1/2" | No. 10 | 0.250" | 275 | 50° to 1700° | Beige | 1 | 000000000 | 0000 |
| 3/4" | No. 10 | 0.250" | 275 | 50° to 1700° | Beige | 1 | 000000000 | 0000 |
| 1" | No. 10 | 0.250" | 275 | 50° to 1700° | Beige | 1 | 000000000 | 0000 |

























